AD/BELL 222/19 - Retrofit of Engine Overspeed Controller
1AD/BELL 222/19 - Retrofit of Engine Overspeed Controller
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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
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Bell Helicopter Textron Canada (BHTC) 222 Series Helicopters
AD/BELL 222/19 Retrofit of Engine Overspeed Controller 9/96
Applicability: All Bell 222 series helicopters fitted with AlliedSignal LTS101-650C-3 or LTS101- 650C-3A or LTS101-750C-1 engines incorporating AlliedSignal Service Bulletin LTS 101C-73-10-0129 Revision 3.
Requirement: To prevent a power turbine overspeed and an uncontained engine failure, incorporate the wiring and associated hardware installation requirements detailed in Bell Helicopter Service Instructions Number BHT-SI-222-27 or BHT-SI-222-28.
Note 1: CAO Airworthiness Directive Part 106 AD/LTS/13 refers. Note 2: FAA Airworthiness Directive AD 95-26-01 refers.
Compliance: Effective 15 August 1996: Concurrent with CAO Part 106 Airworthiness Directive AD/LTS/13, Requirement 2; at the next scheduled 600 hour airframe inspection after the effective date of this directive, but no later than 31 December 1997.
Background: This directive has been issued to require the wiring and associated hardware modifications necessary to permit the incorporation of an electronic engine overspeed controller. The requirement, in conjunction with AD/LTS/13, addresses reports of uncontained power turbine overspeed events.